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Add documentation for the tmp421 driver. Signed-off-by: Andre Prendel <andre.prendel@gmx.de> Acked-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
36 lines
1.2 KiB
Text
36 lines
1.2 KiB
Text
Kernel driver tmp421
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====================
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Supported chips:
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* Texas Instruments TMP421
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Prefix: 'tmp421'
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Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
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Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
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* Texas Instruments TMP422
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Prefix: 'tmp422'
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Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
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Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
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* Texas Instruments TMP423
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Prefix: 'tmp423'
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Addresses scanned: I2C 0x2a, 0x4c, 0x4d, 0x4e and 0x4f
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Datasheet: http://focus.ti.com/docs/prod/folders/print/tmp421.html
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Authors:
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Andre Prendel <andre.prendel@gmx.de>
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Description
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-----------
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This driver implements support for Texas Instruments TMP421, TMP422
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and TMP423 temperature sensor chips. These chips implement one local
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and up to one (TMP421), up to two (TMP422) or up to three (TMP423)
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remote sensors. Temperature is measured in degrees Celsius. The chips
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are wired over I2C/SMBus and specified over a temperature range of -40
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to +125 degrees Celsius. Resolution for both the local and remote
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channels is 0.0625 degree C.
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The chips support only temperature measurement. The driver exports
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the temperature values via the following sysfs files:
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temp[1-4]_input
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temp[2-4]_fault
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